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arXiv 2108.09428cs.ITmath.IT
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有限域上基于子域的最优线性码的构造

A subfield-based construction of optimal linear codes over finite fields

Zhao Hu, Nian Li, Xiangyong Zeng, Lisha Wang, Xiaohu Tang

摘要:

本文利用有限域上子域并或陪集并的补构造了四类线性码,它们可以产生无限类最优线性码,包括无限类(近)Griesmer码.我们还刻画了这四个家庭的线性码的最优性与一个明确的可计算的标准,使用Griesmer界,并获得了许多距离最优的线性码。此外,我们还得到了几类重量较少的距离最优线性码,并完全确定了它们的重量分布。结果表明,我们的线性码大多数是自正交的或极小的,这在实际应用中是有用的。

英文摘要:

In this paper, we construct four families of linear codes over finite fields from the complements of either the union of subfields or the union of cosets of a subfield, which can produce infinite families of optimal linear codes, including infinite families of (near) Griesmer codes. We also characterize the optimality of these four families of linear codes with an explicit computable criterion using the Griesmer bound and obtain many distance-optimal linear codes. In addition, we obtain several classes of distance-optimal linear codes with few weights and completely determine their weight distributions. It is shown that most of our linear codes are self-orthogonal or minimal which are useful in applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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